Dyeing spindle



Nov. 5, 1940. H. w. BUTTERWORTH, .1R 2,220,780

DYEING SPINDLE Filed April 26, 1939 jg f6,

Ira) @1%12'- Patented Nov. 5, 1940 UNITED STATES PATENT `oFFIcE DYEING SPINDLE Application April 28, 1939, Serial No. 270,263

2Claims.

This invention relates to dyeing spindles for package dyeing machines of the type which are commonly employed in such machines for supporting the yarn packages while pumping dyeing or conditioning materials therethrough.

The yarn packages are wound upon a perforated paper or metal tube and the spindles utilized in holding the same are so constructed that dye may be delivered through the perforated tube and the yarn wound thereon. The types of spindles now in use are unsatisfactory in many respects, the principal objection thereto being that, due to their construction, they either interfere with the circulation, as in the case of perforated spindles which tend to screen the libres from the liquor with the result that accumulated screenings clog the spindle and are diillcult to remove therefrom, or fail to provide adequate support for the relatively fragile package tube, or

io are inherently weak, so that it becomes impossible to utilize them for holding a plurality of yarn packages.

'I'he purpose of the present invention is the provision of a spindle which will provide an ade- I quate support for one or more packages, which will provide a maximum area for circulation of the dyeing liquid and at the same time include a construction which will avoid blocldng of the perforations of the package tube to the greatest 8 possible extent, which will not present rough surfaces to which lint contained in the dyeing fluid can cling and thus serve to impede circulation, and which may be so constructed that it will closely fit within the package tube and thus 8l serve to prevent collapse thereof.

These and other objects I attain by the construction shown in the accompanying drawing wherein, for the purpose of illustration. I have shown a preferred embodiment of my invention n and wherein:

Fig. 1 is a fragmentary sectional view of a dyeing machine employing spindles constructed in accordance with my invention;

Fig. 2 is a section on line 2--2 of Fig. 1; and

Fig. 3 is a section on line I-I of Fig. 2.

Referring now more particularly to the drawing, the numeral I0 designates a drum or header through which dye may be introduced; II, spindles supported from the drum and having their lower ends projecting thereinto and held in the wall of the drum by threaded bushings i2. Each spindle comprises a round bar I2 one end of which has a reduced threaded extension i4 for the reception of a retaining nut Il. The bar,

n I6 from a point immediately adjacent the reduced extension to a point immediately adjacent its opposite end, is spirally grooved, as indicated at I6, these grooves being of uniform depth from points immediately adjacent their ends and having such end portions gradually tapered as indi- 8 cated at Il. Such grooves can, obviously, be formed in the bar by a milling operation which gives to the flutes Il thus formed a smooth and finished surface offering no impedance to the passage of dyeing fluid. l0

The diameter of the bar is made such that it closely ts the interior of the perforated tube I9 upon which the yarn package 20 is wound.

- Bushing I2 is shrunk upon the outside of the bar at a point where the grooves I6 have attained i6 their full depth and is formed in its outer end with a groove 2l to receive the end of the adjacent yarn package tube I9 and the under surface of nut l5 is provided with a corresponding groove 22 to receive the outer end of the topmost yarn package tube. These grooves, since the package tubes can closely fit against the surface of the utes II, must be disposed in alignment with the periphery of the spindle.

Where a plurality of packages is placed upon the spindle, the spacers 22 are provided for disposition between adiacent packages, such spacers comprising simply rings closely fitting the spindle and having grooves 24 at their ends for the reception of the ends of the adjacent yarn package tubes. It will be obvious that by employing a solid bar of this type the completed structure has a central core of considerable strength so that a number of packages can be used on each spindle. Due to the fact that the grooves are smooth-walled and have attained their full depth before the circulation passages thus formed meet any surrounding surface, there will be no tendency of lint to collect and thus tend to impede ow through the spindle. Likewise, due to the fact that the grooves extend into the liquor zone and emerge gradually from the solid rod in which they are formed, there is no tendency of the lint and bres in the liquor to collect against square end zones such as are provided in the usual construction. Since the package tube will closely t about the spindle and the support aiorded is spiral, any tendency to collapse on the part of these tubes is eliminated. Due to the fact that the grooves are spiral and the outer edges of the flutes are extremely narrow, there is little tendency to obstruct the openings of the package tube and this, in turn, permits the package tube to be more closely fitted to the spindle. It is pointed out that u straight fiuung is resorted to there will be a decided tendency of 'the ribs to obstruct a straight ,line of openings in the package tube and, for this reason, package tubes heretofore have usually been made very loose f1tting, which increases the tendency of the same to crush.

As the spindle is capable of some modication without departing from the spirit of my invention, I do not wish to be understood as limiting myself to the particular structure herein shown except as hereinafter claimed.

I claim:

1. A package holder for dyeing machines comprising a rod having spiral flutes. a threaded extension at one end of the rod, a cap engaged with said extension, the grooves of the rod terminating short of the ends thereof and having their terminals of progressively decreasing depth,

and a bushing fixed to and surrounding the rod at a point spaced from the opposite end of the rod where the grooves of the rod are o! their full depth. v

2. A package holder for dyeing machines comprising a iiuted rod, the flutes of which terminate short of the ends thereof and have their terminal portions of progressively decreasing depth, a cap detachably engaged with the uniluted portion of one end of the rod and a mounting bushing secured to the rod adjacent the opposite end thereof and at a point such that its outer terminal surrounds the flutes at a point where they are of full depth.

HARRY W. BU'I'IERWOR'I'H, JR. 

